Aluminium-Zinc Alloy Coated Steel Coil
Featuring a unique 55% Al-43.4% Zn-1.6% Si alloy coating (ASTM A792 compliant), our coils deliver 2-6x better corrosion resistance than GI steel, with superior heat reflectivity (480°C stability) for critical environments. |
Product Name: 55% Al-Zn Alloy Coated Steel (GL Coating)
Overview
Featuring a unique 55% Al-43.4% Zn-1.6% Si alloy coating (ASTM A792 compliant), our coils deliver 2-6x better corrosion resistance than GI steel, with superior heat reflectivity (480°C stability) for critical environments.
Parameter | Range |
---|---|
Base Material | DX51D+AZ, SGLCC, ASTM A792 |
Coating Weight | 60g/m² – 255g/m² (AZ100-AZ200) |
Thickness | 0.3mm – 4.0mm |
Width | 800mm – 2000mm (Width Welding Available) |
Surface Pattern | Spangle/Zero-Spangle/Stone Finish |
Salt Spray Resistance | ≥1500hrs (ASTM B117, AZ150 Coating) |
Solar Reflectance | ≥75% |
Standards | ASTM A792, JIS G3321, EN 10346 |
Hyper-Corrosion Resistance
25-year service life in marine atmospheres (ISO 9227 certified)
Heat Reflection
Maintains integrity at 480°C with >75% solar reflectance
Cut Edge Protection
Zinc migration mechanism prevents edge corrosion
Weight-Saving Strength
15% thinner vs GI coils at equal corrosion resistance
Engineered Surfaces
Anti-fingerprint/Self-lubricating/Conductive oxidation options
Solar Energy: PV mounting systems (PID resistance), inverter housings
Architecture: Stadium roofs, unpainted wall panels
Automotive: Mufflers, exhaust components
Appliances: Oven casings, microwave cavities, HVAC units
Agri-Engineering: Greenhouse frames, ammonia-resistant livestock roofs
Free Coating Solution Design
Custom Al-Zn ratios (e.g. AZM 65%Al), coating tolerance (±3g/m²), and sulfide-resistance treatments available.